Antiskidding device.



Patented Apr. 16, 1913.

Syvum/Mio@ WILLIAM II. McLAUeiILIN, or HARTFORD, CONNECTICUT, AssIGNoB To Cs s."

CHASE, or nA-nTronn, CONNECTICUT, v

AN TISKIDDIN Gr DEVICE.

Specification of Letters Patent.

Application fiedNovember 2, 1917. ISerial No. 199,845.

' fordl and State of Connecticut, have invented certain new and useful Improvements in Antiskidding Devices, of 4which the follow.-

ingis 'a' speclflcation. e

' This invention relates to anti-skiddrng -de- '10 vices, more particularly toene o f the plates or members of a twoplate clamp empioyed ther'ei, and residesv especially' in the means for rea links of a chain or part or'parts of some ele- 15 mentor elements, in the arrangement and combination o parts to prevent-the separation of said'm ans from said plate while the latter -is Ain normal or operative position on provision forI lock- ,the 'wheel spoke, and 20, ing said means in position;

Illlie invention hereinafter set forth has'- for its primary 'object to provide one of the plates yof the clamp, forming a unit o f the anti-skidding device, with a pin arranged at an interval from the parallel face thereof and` having a portion, in normal position, loc ted between two rigid surrounding par s, which pin' is to have releasable locking means permitting it to be released and 3o inovedendwise slightly so that the links of a chain may be, slipped-over` the end of the-pm and, when it is locked in its-normal position, held by the portion of said pin between said rigidparts. Other objects -are to so form 4the pin, clamp vplate and locking means that the pin cannot be separated from said plate until the locking means are removed from the pin arid the clamp plate has beenuremoved from the spoke to provide sucient 4Q clearance adjacent the outer end of the pin to allow it to be moved lengthwise in the direction of said end until clear of said `rigid parts; to combine in the locking means the two functions of locking the pin and of a powerfuljpullingv and pushing device to pull the pin free in case it gets stuck by freezing orother causes and to push it back into posi-v tion after the chain linkshave beenslipped over the end thereof in case the hole 7 or o the part 4 of the pin is clogged or coated with ice, mud, dirt or other obstructive agent.

Further objects are to improve and simplify such devices,to simplify and improve the locking means,

a citizenofthe United States,

y securing thereto, or, therein the 'clamp by itself;

'G o`f thewheel, l against theinner' face, of' the felly H, on

-. provided 'as to lit snuglyv in the hole 7 and to reduce the cost of manufacture of' such.l articles, while increasing their. efficiency and durability, all of which objects, are accomplished by the con-- struction, combination and arrangementl of parts all as hereinafter more particularly set forth', -described and claimed.

In the accompanying. drawings,

only the lpreferred form is illustrated 'Figure l represents a front elevation of a clamp .applied to the spoke of a wheel in accordance withmy invention;

Fig. 2 represents a perspective view of the Fig. 3 representsa erspective View of the pin', locking nut. andp` guard nutfin superposed relation, away; A Fig.4 4 represents a crossfsectipnal view throu shown'in side elevation; and

Fig. 5 represents a similar view, being omitted. v

Referring now iin detail to the drawings, A' and B indicate the respective' clamp plates having'a rubber treated lining C and prothe pin vided withzperforated end flanges D for the reception of bolts Elon Awhich wing v nutsF are screwed to draw the two plates toward each other on the outer portion of a spoke .With the flange 2 of plate B which is mounted' the tireI; J indicates one of the transverse anti-skidding chains 'of the fixed point 'or anchored t pe.

The plate B is provided with two projecting parts or l flanges 1 and 2, preferably, though' not necessarily, integral therewith and preferably parallel to each other, The flange 1 is provided with an internally screw.- threadedperforation 8 .and the tiange 2 is with a `hole 7,`which i's of greater. diameter than the perforation 8. Hole 7 and perforation 8 have a common axial line. A Vpin 3 is inserted through the hole 7 of the flange 2and 'is provided with a preferably integral enlargement 4 at one end, which enla-rgement is o'f such but. is too large topass through the perforation 8. This pin 3 maybe inserted through the hole rfand through perforation 8 until the enlargement '4 strikes against the face-of .flange 1 adj arent h the hanged plate B, .the pin 3 4being` size and shape I PatentedApi. 1.6,

in which the locking nut being broken v beyond the face of -nnt15.-- 'A' guard nut G vlo sembled thev is then turned on thelthreaded part of stem 9 andholdslocking nut 5' against movement longitudinally 'off said' pin 3' while permittingit to rotate'fr'eely thereon.

pin may'be shoved through l the perforation 8 until the threads ofthe nut engage with the threads of the walls' of saidlperfora-tion 8, when vthe nut 5 vis to` be f rotatedy in 'the correct :direction to force the 7 inner shown'ln'rFig. l. Asthe nut 5 is too "largepininto normal position with its enlarged portion 4 fitting snugly in the hole 7 rlhe clampplates A'and B are now ready to fbe attached'or secured tothe spokes-G of a truck wheel with the flange 2 of plato B in engagement with, or closely adjacent to, the face of the felly H of said wheel, as

topass entirely through the perforationy 8 and as, when .mounted as shown insaid figure and labovede'scribed, the felly will prevent any outward travel through the hole7,

thel removal ofthe is obvious that the onlygway inwhichfthe pin 3 can be removed from the plate B, or a .new pin inserted, is by the removal ofthe clamp plat'esA and B fromthe spoke Aand nuts `6 and 5, when the pin Smay beworked'out through'the hole 7 VBylreason of the above described construction `and combination itis obvious that the pinf can only Abe removed from the flanges and separated'lfromthe plate B by the removal of therclamp'plates A and B from theirk normal position on-` the spoke, either yentirely from the spoke or tosome other position on the'spoke, in order'that sufficient clearance maybe provided between the inner peripheryl of the felly andthe adjacent face of plater B to allow the pin 3' to'be withdrawn through hole7 vafter nuts 6 and 5 have been removed from said pin 3. v f To guard against the guard nut 6 being worked loose or off by the lock nut 5 the nut '6 will be threaded in the reverse direction to the threads of vnut 5, or other suitable methods or means may be adopted to obviate this trouble.A

ln use, the lock-nut will be turned outwardly, when yits outer face will engage the adjacent face of nut 6 and through it and stem 9 pull the pin 3 toward the hub of the wheel exerting a great leverage, in case 'the enlarged end 4 or other causes, o

is ystuck in lhole 7 by frfeezing As soon as the enlarged end 4 is free and the threads of nut 5 are free from the threads of the wall of perforation 8, the pin 8 may be shoved outwardly partially through flange As thus asi to free the pin 3 frorn'fflange L l to allow ther-links of the two end portions of the antiskidding chain J to be slipped over the enlarged end 4, when the above opv erations will be reversed and the shoulder 1l of nut' 5, bearing on shoulder lof pin 3, will force said pin toward. flange 7 until the enlarged end 4 ,isl in normal position in hole 7. i

Any suitable materials maybe usedfor any parts.

Having thus described my invention, what I claim as'new and desire to secure by Letters Patent is:

l. Two rigid perforated parts, apart normally located in the perforations of 'said parts and adapted to receive the terminal links of a chain, and means for locking said part in normal" position, in combination with a wheel on'whic'h said perforated parts are' 'fixedly mounted'with one of said perforated part'sadjacent to a relatively fixed part of said wheel in the direction of the axial line of the perforations ofsaidperforated parts.

2. A plate having two perforated flanges, a pin normally located in the perforations of said flanges and adapted Vto'receive the terminal link'sfof a. chain, and means for locking said part in normalv position, in combination with a wheel on which said plate is firedly mounted with the outer face of one of said flangesadjacent ar relatively'fixed part ofv said wheel.

A'olamp comprisingtwo plates to fit on the vspoke of a Wheel, one of said plates'being provi ed with flanges-havingperforations, ak vpin normally locatedin said perfo- `rations and adapted to receive the terminal links of .an anti-skid chain,jand means for locking saidpin in normal position', in combination with a Wheel vto one of the spokes of which -said clamp-is applied vclosely ad jacent the inner periphery of the felly, the outer end of said pin being of greater' size than the perforationdn the flange of said plate nearest the hub of the wheel. v

4. A* clamp comprising two plates to lit on the spoke vof a wheel, one of said plates being provided with flanges having'perforations, a pin normally located in said perforations and adapted to receive the terminal links of an anti-skid chain, and screwthreaded means engaging threads in thev inner' flange and acting on said pin tol lock it in normal position .or to move it longitudi nally in either direction, 'in combination with a Wheel to one of the spokes of which said clamp is applied with its outer flange adjacent the inner periphery of the felly of the wheels, the outer end of said pin being of greater size than the perforation in the inner flange of said plate. i

5. A clamp comprising two'plates to fit on the spoke of a Wheel, one of said plates being provided with anges having perfora- 2 ing larger than the perforation in the inner flange, a pin normally located in said perforations with .its outer end snugly fitting the perforation in the outer flange and of such size as Will not pass through the perforation in the inner flange, said pin beingadapted to receive the terminal links of an ant1-skid chain, and means for locking said pin in normal position, in combination with a wheelto one of the spokes of which said clamp is appliedvadjacent the inner face of the elly, which prevents the separation of said pin from said clamp plate While the clamp ,1s in normal position on said spoke.

6. In an anti-skid device for vehicle Wheels,

the combination with they spokes, felly and tire, of a clamp attached to one of the spokes near the felly and having a circumferentially extending plate lying against the inner face of said felly and provided with a radial pin,

and a cross chain extending around the tread of the tire and having both ends attached to said pin. I

7. In an anti-skid device for vehicle Wheels', the combination with the spokes, felly and tire, of a clamp attached to one of the spokesv 

